DNA is not found in :-

Options

A. Nucleus
B. Mitochondria
C. Chloroplast
D. Ribosome

Answer

To answer the question "DNA is not found in:", we will analyze the components of a cell and identify where DNA is typically located and where it is not.

### Step-by-Step Solution:

1. **Understanding DNA Location**:
- DNA is primarily found in the nucleus of eukaryotic cells. It is organized into chromatin and chromosomes.

2. **Other Locations of DNA**:
- Apart from the nucleus, DNA is also present in mitochondria. Mitochondria have their own circular DNA, which is similar to prokaryotic DNA.

3. **Identifying Locations Without DNA**:
- We need to identify cellular structures that do not contain DNA. One such structure is the ribosome. Ribosomes are responsible for protein synthesis and do not contain DNA.

4. **Conclusion**:
- Therefore, the correct answer to the question is that DNA is not found in ribosomes.

### Final Answer:
DNA is not found in ribosomes.